correlation

After a week of travel to Europe for work, I am winding down at a restaurant in Stockholm Arlanda Airport for a flight in the morning. I decided to go and have one more nice meal (and some wine to help me sleep). Okay, the wine was for taste, but the sleeping part is an added bonus. During my dinner, I noticed some perfect english beside me (which is rare in Sweden).
After introducing myself, I found out it was a group of people who just finished a week from a Robotics conference discussing papers (one PhD and 2 undergrad). What a fantastic discussion! Especi...